AFAIK NetBSD does not currently handle non 512byte/sector media
	under ffs. Koji Imada - je4wob/2 <koji@math.human.nagoya-u.ac.jp>
	has a fix, though  I understand they are currently discussing
	which of several options is the 'best' fix.

	ftp://ftp.NetBSD.ORG/pub/NetBSD/mailing-lists/tech-kern/tech-kern.0131
	has a posting from him..

                David/abs               abs@anim.dreamworks.com

    		       - Oakwood apartments -
     - $1300 a month and people steal your laundry - What a place -

On Wed, 30 Apr 1997, Berndt Josef Wulf wrote:

> David Brownlee wrote
> > 
> > 	I tried something similar on NetBSD/sparc just pre 1.2.
> > 	1024 byte/sector media lost, while 512 byte/sector media
> > 	worked fine. I think someone is looking at getting NetBSD
> > 	to handle non 512 byte/sector media currently...
> 
> I defined the MO as followed;
> 
> # /dev/rsd2c:
> type: SCSI
> disk: SONY
> label: 
> flags:
> bytes/sector: 1024
> sectors/track: 32
> tracks/cylinder: 64
> sectors/cylinder: 2048
> cylinders: 153
> total sectors: 313344
> rpm: 3600
> interleave: 1
> trackskew: 0
> cylinderskew: 0
> headswitch: 0           # milliseconds
> track-to-track seek: 0  # milliseconds
> drivedata: 0 
> 
> 3 partitions:
> #        size   offset    fstype   [fsize bsize   cpg]
> c:   313344        0    4.2BSD     1024  8192    16   # (Cyl.    0 -
> 152)
> 
> 
> After this I issued -
> 
> 
> hotdog# newfs /dev/rsd2c
> /dev/rsd2c:     313344 sectors in 153 cylinders of 64 tracks, 32
> sectors
>         306.0MB in 10 cyl groups (16 c/g, 32.00MB/g, 7680 i/g)
> super-block backups (for fsck -b #) at:
>  16, 32816, 65616, 98416, 131216, 164016, 196816, 229616,
>  262416, 295216,
> 
> hotdog# fsck -f /dev/sd2c
> ** /dev/rsd2c
> ** File system is already clean
> ** Last Mounted on 
> ** Phase 1 - Check Blocks and Sizes
> ** Phase 2 - Check Pathnames
> ** Phase 3 - Check Connectivity
> ** Phase 4 - Check Reference Counts
> ** Phase 5 - Check Cyl groups
> 1 files, 1 used, 303566 free (14 frags, 37944 blocks, 0.0%
> fragmentation)
> 
> 
> hotdog# mount /dev/sd2c /mnt
> ffs: /dev/sd2c on /mnt: incorrect super block
> 
> I tried to use sd2a but this will not allow me to the newfs as it
> complain with:
> 
> hotdog# newfs /dev/rsd2a   
> write error: 313343
> wtfs: Invalid argument
> 
> cheerio Berndt
> -- 
> Name	: Berndt Josef Wulf
> E-Mail	: wulf@ping.net.au
> Sysinfo	: DEC AXPpci33+, NetBSD-1.2
>